Hi,
technically, I prefer the non-inverting chipamp topology.
Preceed them with an inverter or unbalanced to balanced converter circuit.

But, some prefer the sound of the inverting chips, in which case adopt this for both and again preceed with a balanced output converter.

But, do drive only high impedance loads if you want to avoid premature current limiting in the chipamps. (my interpretation is one pair of bridged chipamps limited to just 7Apk can drive 12ohms to 30Vpk from about +-35Vdc supplies).

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regards Andrew T.
Sent from my desktop computer using a keyboard

Originally posted by jarthel I was looking at Peter's website and it seems the LM4780 PCBs he sells are either both non-inverting or both inverting.
.

The main reason for LM4780 kit to be noninverting only is versatility: the same dual chip can be either used as stereo, parallel or bridged amp, just by changing connection points and a jumper.

The second reason is that while I actually started with inverting topology, following further experimentation and feedback from customers, came later to conclusion that non inverting sounds better.

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